Write to Manchester United club in advance. Tell the club sincerely that your good friend's birthday is coming. He likes Manchester United too much. If the club can send a poster signed by all the players, wow, that would be handsome.

His favorite Manchester United star cartoon.

Manchester United's CD bags, backpacks, Manchester United's scarves, wristbands and so on.

Or buy something more valuable in partnership with others, which is more weighty than yourself. Of course, if you want to send it separately, it's better to be chic, and it's not easy to buy in the market. United's official stuff should be better.